Robertshaw 5502-136 Infinite Switch Is this an exact replacement

Is this an exact replacement for the 660921 burner

Check for a clogged HVAC filter

Installation Flexibility: Includes a removable mounting bracket compatible with three-side mounting for versatile positioning

If your application requires pressures exceeding the 15" WC limit of the green spring

Robertshaw 5502-136 Infinite Switch Is this an exact replacementThe Robertshaw 5502 136 is a professional grade infinite switch designed for precision heat control in commercial food service equipment. This 120V AC M series rotary control offers a compact profile that fits into tight control panels where standard universal switches often fail to seat properly. Rated for resistive loads up to 15 Amps and wattage ranges from 100W to 3600W, it provides a linear power output with distinct low to high detents. The 5502